linux-ext4 - Re: Kernel Benchmarking

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAHk-=wgsUtTRWT6kXxw6f2xpS4W=7iO6k2rJfhpLa6yFZ-b_1w@mail.gmail.com>
Date:   Mon, 14 Sep 2020 17:42:18 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Matthieu Baerts <matthieu.baerts@...sares.net>
Cc:     Michael Larabel <Michael@...haellarabel.com>,
        Matthew Wilcox <willy@...radead.org>,
        Amir Goldstein <amir73il@...il.com>,
        "Ted Ts'o" <tytso@...gle.com>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Ext4 Developers List <linux-ext4@...r.kernel.org>,
        Jan Kara <jack@...e.cz>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: Kernel Benchmarking

On Mon, Sep 14, 2020 at 1:53 PM Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> One way I can see that happening (with the fair page locking) is to do
> something like this

Note that the "lock_page()" cases in that deadlock example sequence of
mine is not necessarily at all an explicit lock_page(). It is more
likely to be something that indirectly causes it - like a user access
that faults in the page and causes lock_page() as part of that.

                    Linus